Vaporizer



(No Model.) 2 Sheet s8heet 1.

. G. E. TREGURTHA.

VAPORIZER.

No. 578,683. Patented Mar. 9, 1897.

In! norms mans cu. PNOTO-UTHD. vasamcTon, u. c.

(No Model.) 2 Sheats -Sheet 2.

G. E. TREGURTHA.

VAPORIZBR. No. 578,683. Patented Mar. 9,1897.

4 1 flm; 3 m

UNITED STATES PATENT OFFICE.

GEORGE E. TREGURTHA, OF MALDEN, MASSACHUSETTS.

VAPORIZER.

SPECIFICATION forming part of Letters Patent No. 578,683, dated March 9,1897.

Application filed April 29, 1896. Serial No. 589,564. (No model.)

To all whom it may concern:

Be it known that I, GEORGE E. TREGUR- THA, of Malden, in the county ofMiddlesex and State of Massachusetts, have invented certain new anduseful Improvements in Vaporizers, of which the following is a full,clear, and exact description.

This invention relates to a vaporizer for vaporizing gasolene andsimilar liquids, for use more particularly in connection with theoperation of an engine; and the invention consists of a vaporizerconstructed and arranged for vaporizing gas from gasolene or otherliquids, all substantially as hereinafter fully described, referencebeing had to the accompanying sheets of drawings, in which Figure 1 is aplan View. Fig. 2 is a view below section-line 2 2, Fig. 3. Figs. 3 and4 are vertical central sections on lines 3 3 and 4 4:, respectively,Fig. 1. Fig.5 is a crosssection on line 5 5, Fig. 4.

In the drawings, A represents a casing or shell made of any suitablemetal, circular in cross-section, and made in three partsB, a centralportion; 0, a lower portion, and D, a top or cover, all secured togetherby flanges E and screws F, respectively.

Gis an annular chamber formed by the outer wall H and inner circularwall J, cover D, and a bottom K, connecting the two walls together. Theinner circular wallJ is notso high as the outer wall H, leaving a spaceL over its upper end between it and the cover D.

M is a horizontal partition within the inner wall, dividing it into twochambers N P. i

From the central part of the top or cover D extends downward a circularpartition Q a short distance into the upper chamber N, making anair-passage R, and above this passage the top of the cover extendsupward, forming a chamber or passage S above the airpassage R, andpracticallya continuation or a part of it, and this upper part has acontracted opening T, into the upper end of which is arranged to screw ashort tube U,

its upper part being enlarged, as at V, and

Th rough one side of the plugW is a hole I), which opens into thechamber (1 of the plug, and which when the plug is screwed down in placeis opposite to or coincident with a hole e in the side of the tube,opening into the chamber f of the side extension Y.

trally secured to a stem or rod g, the lower end-oi the valve extendingdown and projecting a short distance below into the chamber S. The upperpart of the rod or stem 9 extends up through the tube and freely througha screw-nut n, screwed into the tube, which serves as a guide for thevalve-stem g. In the chamber of the tube above the valve-seat B is aspiral spring 0 surrounding the upper stem and bearing against the underside of the screw-nut n and the upper end of the valve A, which springacts to hold and return the valve to its seat.

At one side in the top is a raised portion D, which has communicationwith and forms an upward extension of a vertical passage E in the sideof the middle portion outside of the annular chamber, and in its openend is adapted to be screwed a pipe or conductor, (not shown,) whichleads to any suitable hotair supply, such, for .instance, as thejacketchamber of the cylinders.

The vertical side passage E at its lower end opens into the end of ahorizontal passage F in the bottom part, leading toward the center,

and opening by its upper end G in a circular form in the lower chamberP, which end forms a seat for a fiat circular valve H. This valve H issecured centrally to a vertical stem or rod 1", its lower portion 6extending down through a central opening u in the wall J of the casingand having on its outer end 1) a screwnut K, which can be screwed up anddown thereon and thus regulate by its abutment against the end w of thecase the upward air-passage S, as shown, and a short distance below thelower end it of the valve A when it is on its seat, as shown.

The passage S extends along horizontally at one side, as at P, Fig. 3,in the top D, and opens into a vertical passage Q outside of the annularchamber G, which at its lower end communicates with a horizontal passageand chamber R in the bottom, which opens into the chamber P under thecentral partition M, as shown more particularly in Fig. 3.

In the outside wall is an opening or outlet S, having an internalscrew-thread,into which can be screwed a pipe to lead to the-en gine tobe operated by the gasolene.

The operation of the vaporizer is as follows: Heated air is drawn in theusual manner into the Vaporizer through the opening D, which passes downthrough the passage E into the passage F, up the central passage,raising the valve H from its seat, which lets the heated air into thechamber P, when it passes along the horizontal passage R, up the passageQ, along the upper passage P, around and about the disk M, and into theseveral air-passages and chamber below it. As the valve H rises from thepassage of the hot air its disk M strikes against the lower end of thevalve A, raising the valve from its seat, leaving the passagetherearound free for the gasolene to flow down therethrough, which inthe meantime has passed through the holes I) 6 into the plug-chamber d,into the passage S below the valve, and drops onto the disk M, which'hasbecome heated. The gasolene becomes more or less heated and vaporizedand in its vapor form passes down the annular passage B, into thechamber N; over the upper edge of its wall J, into the annular chamberG, and then out at the outlet S to the engine. If any of the gasolenepassing into the chamber N is not vaporized, it passes through a hole ain the partition M into the chamber P, and is'then vaporized on thevalve H, which passes through the passages R, Q, and P into the centralchamber N and, with the other vapor, out at the exit. If any gasolene inthe chamber P and passage R is not vaporized, it passes out through asmall opening 1) in the bottom and escapes into the air.

In the use of this vaporizer with an engine it is preferable to have itconnected thereto so that the heated air will pass into the vaporizer atintervals, the valve to the heatedair pipe being operated in any of thewellknown ways in the operation of gasolene-engines and preferably atevery other outward stroke of the piston, although it is not limited tosuch. Thus at every other outward stroke of the engine the heated air isdrawn into the vaporizer, opening the two valves, vaporizing thegasolene, the vapor of which passes, as described, to the engine to beignited in any of the usual ways, when, the heated air being shut offwith the inward stroke, the valves A and H are closed until the nextoperating outward stroke, when the valves are operated and the gasolenevaporized as before, and so on as long as desired.

The air-passage extending nearly around the vaporizing-chambers beforecommunicating therewith, the heated air as it passes therethrou gh comesin contact with nearly all the walls of the chambers before enteringtherein, which warms the walls and thus quickens and insures thevaporizing of the gasolene therein.

Having thus described my invention, what I claim is- 1. In a vaporizer,a series of vaporizing annular chambers, concentric with each other, anoutlet to the outer annular chamber, an air-passage leading to thecentral annular chamber extending nearly around the chambers, a valve tosaid air-passage, an inlet for the gasolene into the end of saidair-passage, a valve to said inlet, a disk or plate in the end of saidair-passage below said gasolenevalve and connected to said air-valve foroperation thereof.

2. In a vaporizer, a series of vaporizingchambers, consisting of acentral annular chamber open at its top, and open at its bottom into anouter annular chamber, the latter annular chamber open at its top intothe third and outer annular chamber, the annular chambers beingconcentric with each other, an outlet to the outer annular chamber, anair-passage leading to the central annular chamber extending nearlyaround the chambers, a valve to said air-passage, an inlet for thegasolene into the end of said air-passage, a valve to said inlet, a diskor plate in the end of said air-passage below said gasolene- Valve andconnected to said air-valve for operation thereof.

3. In a vaporizer, vaporizing-chambers, an outlet thereto, an airpassageleading to the vaporizing-chambers extending nearly around the same, avalve to said air-passage, an inletfor the gasolene into the end of saidair-passage, a valve to said inlet, a disk or plate in the end of saidair-passage below said gasolene-valve and connected to said airvalve foroperation thereof.

4. In a vaporizer, vaporizing-chambers, an outlet thereto, an airpassageleading to the vaporizing-chambers extending nearly around the same, anescape-outlet to said airpassage, a valve to said air-passage, an inletfor the gasolene into the end of said air-passage, a valve to saidinlet, a disk or plate in the end of said air-passage below said gasolene-valve and connected to said air-valve for operation thereof.

In testimony whereof I have hereunto set my hand in the presence .of twosubscribing witnesses.

GEORGE E. TREGURTI-IA. Witnesses:

EDWIN W. BROWN, LEONA 0. ARNO.

